/**
 * #      1530
 * 名称   好叶子节点对的数量
 * 链接   https://leetcode-cn.com/problems/number-of-good-leaf-nodes-pairs
 * 题解   [126](https://leetcode-cn.com/problems/number-of-good-leaf-nodes-pairs/solution)
 * 通过率 55.2%
 * 难道   中等
 */

